Photochemical modification of membrane surfaces for (bio)fouling reduction: A nano-scale study using AFM

Nidal Hilal, Laila Al-Khatib, Brian P. Atkin, Viktor Kochkodan, Nelya Potapchenko

Research output: Contribution to journalArticle

79 Citations (Scopus)

Abstract

Biofouling, due to microbial growth on membranes, is a common problem during the operation of water treatment membrane plants. It leads to an increase in operation and maintenance costs due to the deterioration of membrane performance and ultimately shortening membrane life. In an attempt to develop membranes with lower fouling properties in this paper we used the photoinduced grafting technique for the modification of membrane surfaces. Two different hydrophilic monomers: 2-acrylamido-2-methyl-1-1-propanesulfonic acid (AMPS) and quaternary 2-dimethylaminoethylmethacrylate (qDMAEMA) were photografted to the surface of commercial polyethersulfone (PES) microfiltration membranes (Millipore). The modified membranes were characterised using atomic force microscopy (AFM) by visualisation and the measurement of pore size, pore size distribution and surface roughness. A direct quantification of the force of adhesion using silica colloid probe technique and comparisons with unmodified samples were also made. The membrane affinity to biofouling was tested in the presence of Escherichia coli bacteria. It was found that the number of bacterial cells able to proliferate from countable colonies was much less for qDMAEMA-grafted samples compared with unmodified PES membranes. Thus these modified membranes could be potentially more resistant to biofouling.

Original languageEnglish
Pages (from-to)65-72
Number of pages8
JournalDesalination
Volume158
Issue number1-3
DOIs
Publication statusPublished - 1 Aug 2003
Externally publishedYes

Fingerprint

Biofouling
biofouling
atomic force microscopy
Atomic force microscopy
membrane
Membranes
Pore size
Microfiltration
Colloids
colloid
Fouling
adhesion
Water treatment
surface roughness
fouling
Silicon Dioxide
Escherichia coli
visualization
Deterioration
water treatment

Keywords

  • Atomic force microscopy
  • Biofouling
  • Colloid probe
  • Escherichia coli
  • Membranes

ASJC Scopus subject areas

  • Filtration and Separation

Cite this

Photochemical modification of membrane surfaces for (bio)fouling reduction : A nano-scale study using AFM. / Hilal, Nidal; Al-Khatib, Laila; Atkin, Brian P.; Kochkodan, Viktor; Potapchenko, Nelya.

In: Desalination, Vol. 158, No. 1-3, 01.08.2003, p. 65-72.

Research output: Contribution to journalArticle

Hilal, Nidal ; Al-Khatib, Laila ; Atkin, Brian P. ; Kochkodan, Viktor ; Potapchenko, Nelya. / Photochemical modification of membrane surfaces for (bio)fouling reduction : A nano-scale study using AFM. In: Desalination. 2003 ; Vol. 158, No. 1-3. pp. 65-72.
@article{767063aa9a2c4f638f1a01178cdc9296,
title = "Photochemical modification of membrane surfaces for (bio)fouling reduction: A nano-scale study using AFM",
abstract = "Biofouling, due to microbial growth on membranes, is a common problem during the operation of water treatment membrane plants. It leads to an increase in operation and maintenance costs due to the deterioration of membrane performance and ultimately shortening membrane life. In an attempt to develop membranes with lower fouling properties in this paper we used the photoinduced grafting technique for the modification of membrane surfaces. Two different hydrophilic monomers: 2-acrylamido-2-methyl-1-1-propanesulfonic acid (AMPS) and quaternary 2-dimethylaminoethylmethacrylate (qDMAEMA) were photografted to the surface of commercial polyethersulfone (PES) microfiltration membranes (Millipore). The modified membranes were characterised using atomic force microscopy (AFM) by visualisation and the measurement of pore size, pore size distribution and surface roughness. A direct quantification of the force of adhesion using silica colloid probe technique and comparisons with unmodified samples were also made. The membrane affinity to biofouling was tested in the presence of Escherichia coli bacteria. It was found that the number of bacterial cells able to proliferate from countable colonies was much less for qDMAEMA-grafted samples compared with unmodified PES membranes. Thus these modified membranes could be potentially more resistant to biofouling.",
keywords = "Atomic force microscopy, Biofouling, Colloid probe, Escherichia coli, Membranes",
author = "Nidal Hilal and Laila Al-Khatib and Atkin, {Brian P.} and Viktor Kochkodan and Nelya Potapchenko",
year = "2003",
month = "8",
day = "1",
doi = "10.1016/S0011-9164(03)00434-X",
language = "English",
volume = "158",
pages = "65--72",
journal = "Desalination",
issn = "0011-9164",
publisher = "Elsevier",
number = "1-3",

}

TY - JOUR

T1 - Photochemical modification of membrane surfaces for (bio)fouling reduction

T2 - A nano-scale study using AFM

AU - Hilal, Nidal

AU - Al-Khatib, Laila

AU - Atkin, Brian P.

AU - Kochkodan, Viktor

AU - Potapchenko, Nelya

PY - 2003/8/1

Y1 - 2003/8/1

N2 - Biofouling, due to microbial growth on membranes, is a common problem during the operation of water treatment membrane plants. It leads to an increase in operation and maintenance costs due to the deterioration of membrane performance and ultimately shortening membrane life. In an attempt to develop membranes with lower fouling properties in this paper we used the photoinduced grafting technique for the modification of membrane surfaces. Two different hydrophilic monomers: 2-acrylamido-2-methyl-1-1-propanesulfonic acid (AMPS) and quaternary 2-dimethylaminoethylmethacrylate (qDMAEMA) were photografted to the surface of commercial polyethersulfone (PES) microfiltration membranes (Millipore). The modified membranes were characterised using atomic force microscopy (AFM) by visualisation and the measurement of pore size, pore size distribution and surface roughness. A direct quantification of the force of adhesion using silica colloid probe technique and comparisons with unmodified samples were also made. The membrane affinity to biofouling was tested in the presence of Escherichia coli bacteria. It was found that the number of bacterial cells able to proliferate from countable colonies was much less for qDMAEMA-grafted samples compared with unmodified PES membranes. Thus these modified membranes could be potentially more resistant to biofouling.

AB - Biofouling, due to microbial growth on membranes, is a common problem during the operation of water treatment membrane plants. It leads to an increase in operation and maintenance costs due to the deterioration of membrane performance and ultimately shortening membrane life. In an attempt to develop membranes with lower fouling properties in this paper we used the photoinduced grafting technique for the modification of membrane surfaces. Two different hydrophilic monomers: 2-acrylamido-2-methyl-1-1-propanesulfonic acid (AMPS) and quaternary 2-dimethylaminoethylmethacrylate (qDMAEMA) were photografted to the surface of commercial polyethersulfone (PES) microfiltration membranes (Millipore). The modified membranes were characterised using atomic force microscopy (AFM) by visualisation and the measurement of pore size, pore size distribution and surface roughness. A direct quantification of the force of adhesion using silica colloid probe technique and comparisons with unmodified samples were also made. The membrane affinity to biofouling was tested in the presence of Escherichia coli bacteria. It was found that the number of bacterial cells able to proliferate from countable colonies was much less for qDMAEMA-grafted samples compared with unmodified PES membranes. Thus these modified membranes could be potentially more resistant to biofouling.

KW - Atomic force microscopy

KW - Biofouling

KW - Colloid probe

KW - Escherichia coli

KW - Membranes

UR - http://www.scopus.com/inward/record.url?scp=0041764555&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0041764555&partnerID=8YFLogxK

U2 - 10.1016/S0011-9164(03)00434-X

DO - 10.1016/S0011-9164(03)00434-X

M3 - Article

AN - SCOPUS:0041764555

VL - 158

SP - 65

EP - 72

JO - Desalination

JF - Desalination

SN - 0011-9164

IS - 1-3

ER -